Boot



FIG. 1 is a left side perspective view of a boot showing my new design;

FIG. 2 is a front view thereof;

FIG. 3 is a rear view thereof;

FIG. 4 is a right view thereof;

FIG. 5 is left view thereof; and,

FIG. 6 is a top view thereof.

The broken line are for the purpose of illustrating portions of the article and form no part of the claimed design. 

The ornamental design for a boot, as shown and described. 